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HAMPTON FALLS, NEW HAMPSHIRE · ROCKINGHAM COUNTY

BUILD AN ADU IN HAMPTON FALLS.

✓ Allowed by-right · RSA 674:71-73

New Hampshire's HB 577 lets you add one accessory dwelling unit on your single-family lot in Hampton Falls — by-right. A detached ADU can be up to 950 sf, and ADU setbacks match your lot's single-family setbacks.

Hampton Falls setback reference

ADU setbacks in Hampton Falls follow your lot's single-family setbacks for its zoning district. Scan your address in the visualizer and we'll pull your exact parcel and confirm Hampton Falls's front, side, and rear requirements — or just ask us.

Confirm your zoning
📍 SEE AN ADU ON YOUR HAMPTON FALLS LOT →GET A QUOTE

Hampton Falls ADU FAQ

Can I build an ADU in Hampton Falls, NH?

Yes. Under NH RSA 674:71-73 (HB 577), one accessory dwelling unit is allowed by-right on single-family lots statewide, including Hampton Falls (Rockingham County). A detached ADU can be up to 950 sf.

What are the ADU setbacks in Hampton Falls?

ADU setbacks in Hampton Falls match your lot's single-family setbacks for its zoning district. We pull your exact parcel and confirm Hampton Falls's requirements before locking your price.